Electrical – Is wiring a motion sensor switch with 18 AWG wire on a 20 amp circuit innapprorpiate

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I bought some motion sensor switch. They don't come with screw mounts, just 18 AWG wires that pop out. The load is 2 light fixtures maybe drawing 200 watts total. It's on a 15 amp circuit though.

I also wired a timer switch with 14 AWG onto a 20 Amp circuit dedicated to X-Mas lights, the draw is about 300 watts when in use.

I've read there are some exceptions to wiring within the NEC regarding fixtures.

Am I rolling the dice? Or good to go?

Best Answer

You are good to go. The NEC does not regulate manufactured equipment. In the US they are regulated primarily by UL, NEMA, and NFPA. In you case the motion sensor is what will regulate your connected load. In other words, it will probably burn up before the wiring is damaged.

Good luck and stay safe.

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